Roman Numerals
type: MusicGroup
description: thumb|upright=1.2|Roman numerals on stern of the ship showing draught in feet. The numbers range from 13 to 22, from bottom to top. Roman numerals are a numeral system that originated in ancient Rom
popularity: 2
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6ae7d1c482290fd41178f2af8658c1e21b85e6b6f2ffe95a7f689125f3c4787
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64194e35-e9ae-42da-9fae-147bd7cfd02a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64194e35-e9ae-42da-9fae-147bd7cfd02a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64194e35-e9ae-42da-9fae-147bd7cfd02a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd6ae7d1c482290fd41178f2af8658c1e21b85e6b6f2ffe95a7f689125f3c4787","name":"Roman Numerals","registered_at":"2026-06-17T00:54:09Z","symbol":"NIM1229974","token_address":"0x12ac7c9115ca977dff75f5b2b08455479a30f4cd","type":"artist","uuid":"64194e35-e9ae-42da-9fae-147bd7cfd02a"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ae7d1c482290fd41178f2af8658c1e21b85e6b6f2ffe95a7f689125f3c4787. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64194e35-e9ae-42da-9fae-147bd7cfd02a.json and https://artists.proofprofile.net/proofs/artist/64194e35-e9ae-42da-9fae-147bd7cfd02a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd6ae7d1c482290fd41178f2af8658c1e21b85e6b6f2ffe95a7f689125f3c4787","name":"Roman Numerals","registered_at":"2026-06-17T00:54:09Z","symbol":"NIM1229974","token_address":"0x12ac7c9115ca977dff75f5b2b08455479a30f4cd","type":"artist","uuid":"64194e35-e9ae-42da-9fae-147bd7cfd02a"}
album: Roman Numerals
  type: MusicAlbum
  date published: 2006-08-22
album: Roman Numerals
  type: MusicAlbum
  date published: 2006-09-26